Braking apparatus



Aug 21, 1923.. I 1,465,487

A. SCHEUER ET AL BRAKING APPARATUS Filed Aug. 27, 1921 3 Sheets-Sheet 1Aug 21, 1923.

A. SCHEUER ET AL BRAKING APPARATUS Filed Aug. 27, 1921 :5 Sheets-Sheet"a .Aug. 21, 1923. 1,465,487

A. sQHEUER ET AL BRAKING APPARATUS Filed Aug. 27, 1921 s Sheets-Shee t 3j f zy f Patented Aug. 21, 1923.

UNITED STATESE risen? PATENT orries.

ALFRED SCHEUER, 0F VIENNA, AND HUGO SCHEUEE, OF RETZ, AUSTRIA,ASSIG-NORS TO HANDEL MAATSCHAPPIJ H. ALBERT DE BABY 81: GUY, O33AMSTERDAM, HOL- LAND, A DUTCH COMPANY.

BRAKING APPARATUS.

Application filed August 27, 1921.

1 '0 a/Z UT/.LO'IIL- it may (2011061 12 Be it known that we, .iinrnnnSomeone and Hneo Sonnnnn, both Austrian citizens, residing, respeotirelyat 12 Nortlbahnstrasse. Vienna Austria, and 107 Vinveneiplatz, lietz,Austria, have invented certain new anti usenl linprorenrents in BrakingApparatus, of w iich the following is a specification.

nis invention relates to brakes tor vehieles parti ularly the.eoinpresseil air or vat-nun:- brakes of railway or similar vehicles.

It is an objec of the invention to provide improved means whereby whilethe brake blocks are initially applied to the wheels rapidly theeffective iii-airingpower is trans .llllttfitl only after the brakebloeks have thus been initially applied to the wheels, illh'l 'l'nrtherto proviile means tor ensuring the return of ll e brake rotl to itsinitial position when the brake is releasotl.

In aooorilanro with the invention we prorirle a single brake leverarlapteil first to be IHOVWl about one pivotal point to applythe brakebloelcs to the wheels and then to be niorcil about another pivotal pointagainst the resistance of spring or similar means to transmit thebraking: power, the fulcrum tor the se ontl pivotal movementbeingeontntril in :in ore-"nlri or the like ilorice tel. ptetl to bebrought into operative pOsi on by the initial movement of the brakeVfil'.

In orrler that the invention may be clearly nntleii'stoorl ant! readilycarrierl int-o effort, we will now proceefl to describe the same morehilly with retort-nice to the aeeoinpanyinn drawings in which io'ures lanrl 2 are details and Figure a. View oartly in section (it oneconstructional term of the li'l'VGlllllOll, Figures 1 and 2 being SerialNo. 495,911.

Fig. 15 illustrates part of a vehicle with a portion of the brakingapparatus shown thereon.

In Figures 1 to 3 which show one eon struetional form. the parts areillustrated in the positions they assume when the brake is in oil orreleased position. On applying the brake the power or 't'oree ot thebrake piston acts, by means oi the slotted brake piston rorl -lantl ofthe bolt 2-, upon the bralie lever -3- which is maintained in ahorizontal position by means which have been specially shown in thedrawings. and is in any ease secured against lateral displacements. Thebrake pressure rorl 5 learl ing to the bra e blocks, is attached to thebrake lever by means of bolts -4. lly means of a bolt 6 there isattached to the brake lever 2 stirrup or arch -7- bent into the shape 01av U. in the curve or llOlltl (it which there is firmly fixed awetlgeshaperl Si'OlrlJlOCl? -S (see Figure The yoke or stirrup 7 issubjected to the ontinuous pull ot a spiral s ring' so that. when thebrake is releas l. the stopbloclt -F is pressed against a wedge--surface iorniing port oi a wed re-shaped notb in the sha t -lt-- v i.its lievellinog so that when the brake is releaseit it is mntinuouslvnniin ainerl in a ileilinite position which eorrespomls to that shown inFigure 3. lilpon a square portion of the shaft Ili(l an eccentric isi'i'iountcrl which. or means o the h ui-t roll ...l connected to it, canbe displaced. longitudinally on the squared portion of the shatt --.l l.The shaft -1 \lis not rigidly mounted in the bearings --l?i but 7capable oi slight horizontal movement transversely to its lonrt irlinalaxis so that the movable eccentric fiQ-- inonntetl there on eitherstantls away a little l'roni the supporting plate or member -jl4--. orbears upon said plate -Yli--. The hand lxalze is also connected to thebrake lever -?i-- by means of the pull !'O(l ll") i also provirlerl witha slot. anal of the bolt -l6--. The spiral spring- -17-' draws the brare upon release bark into its normal position.

Ono means tor i isplaeine the wwnlri l2 longitudinally of the shaft 10is illustrated in Figure 15. In this figure the thrust rorl 11 is shownformed with a bifurcated end which engages wi :h an annular rec-i, .5153 i narrow,

' 5 the the eccentric l2 and sori esto impart longitudinal lno'i'on'rentto the eccentric and permits relative rotary movement thereof whenoperzitei'l by the dilterencea oi weight of the vehir-ie, SlU'lloperation being otl'eeed through the medium oi :1 linl: 2 connecting thethrns" rod 11 with one end oi u lever 2 pivotzrlir moKnizrd on an axlebox: 25 oi the vohicle and minnevted at its other en? br 1. link 1 36 tothe 'lren'rn;- :2? of the rehiele. l ly :nu'h an :u'rnup'ouienl the mo'wiivszt oi" the vehicle relatively to the mic box due dilil'ront loadsis transmitted to the eurentrie 152 and. its position is ncoor iiiiglyregulated.

The metlu'ul t -;;perution of this arrangement is as followst It theupper end of the rod 1 be uoved to the right by the brake piston {Figure3) then the hrnke -Z-q whilst streh-hilur [ho spring --17- andoi'eremning frictional resistzmee is ii-pt of all turned around the bent3- \v l h time being not able to change its posir lion LS tho springwhich must of (-onrs e possess at corresponding initial ten sion willprevent it troin doing so. i he hrblovlcn are eonQo-fuieitly. rapidly'FIOSFKWl upon the tires of thq whee/is. the Vehioitv mrrespoiulin tothe ratio 01 THUS iuisenion ot the lorer l l )V the posh ion of the bolt([Vllfidikl' still (TUHi lEHIPS in art. move 9.}Oilb the bolt and streesthe spring -9'. Bf?

such movement of the lever 2-3 about the bolt yoke or stirrun 7 is movedto the I 't and moves the Stoobloeh w oi the wedgg'e-slm iied notvh inthe shaft vl'zich is thereupon IQlQilFiOfl for rotation the \YGlQlll; ofthe econ. L r

rotation continuing nntil the distance be which he. become larger duringthe l'n'nko block applying HHVv'ClilLfil of the rod has been filled upby the eeoont io. hat is to say until the eccentric -12 l'mm's the leverOwing to t '16, journalling of the shrztt --1()- in the been 1??- toperz'nit it to more trsmsver" thereotthe oerentric "l2' is now pressedhy the lever -*3 against the rigid Sui porting phite -H-. and the pointor (-ontarot bet-Ween eeceni; o lover -3- now serves, no a point tulerumtor the lover du ing; the final "period of the brzrlzimz operat on inwhich the exertion of power properly so-ealled takes piece it beingunderstood that the transverse movement of the shaft 10 is permithelv nn d ted by the movement of the yoke 7. Home the ntio of transmission ofbrake pressure prm l by the actual or lllfihwhtfi" tile eccentric "Li Lthe sha-i tt i Hwun r to the left around the bolt --z-,

W the contn l notween the lever V the eccentric l2- IS roanowil, heei-eentrie 12 13 returned to lifted position as shown in Figure 2,

top \VLH'lgi'C -8- in the vol against the wedge snrl i 7' zine-d noteh nthe shirt /S being i:

l Wedge E1101' 0? Jitter this; hen

ho nst nioaeiuoni by the range 8' in the 7 h who I held n by the shn.

eonsionentlv, the or point or W d from the positio,

e fivedqe sn the sl- H "or ill m n. (Wed l tationnry. gaures -flto Gwhich show another em stiuetionai form. 0'? the parts are depresented inthe nof in in which the hrnhe is;

'il? them on tween the bolts 6---'- and l-. no method oi operation ofthis arrangement is the same as that which has first been descrlheii.The lever --3- will, provided there 18 sufficient initial tension in theround the bolt & whilst the spring- -9--- The yoke L7- Wllll the stopblock --tlwill then positi in against the lever thus rorui fulcrum.

In l*igurcs i to 5) there is shown a thirr. constructional form with thehralre released or oil; 't di'll'ers from the two cons rceede to theright and the shaft ---10 wil turn on or the influence of? tie weight ofti e longitudinally movable eccentric niounlcifl upr n it so that i.

t will take up a -3- and wi tional lorins hereinhelore descril'ied inthat the eccentric 'lf2- begins to move or lower itself out of the oilposition immediately upon the comn'ienceinent of the movement of lhebrake lever This is due to the tact that the movement of the shaft -10through the brake lever 3- is not el'liected from the pin --6q whichitself does not hei H warn: ru', l he coiiuectuni icl wrec the il uoilover and the shaft --lll is in this pre l'e'ahly cl'l' ected h meansoil the ll? attached to the shaft l0 rind a Al --l9- pivolially attachedto the hr: lie The link i9- is slotted to receive the crank pin and topermit the hralte lever --;3 to move after the placing in operetii'eposition ot the eccentric 12 under the influence of the brake plungerpower the eccentric moving into position the initial ope'ation of thelever 3 the link '19 rel iasing' the crank l8 permitlingthe shalt 10 tohe rotated by the weiojl'it of the eccentric. In this (for ructionalform the hell: guided in :1. slot in the stationary snide plate -?2 l.or in any otl'ier suitable manner: and is by means '0'! the rong'spriiiinj -.=.2- and weaker spring -9 (which in order to dci'nonstruteanother possibility, is here shown in direct e nnection with the hrzilzepressure rod engaging with the hralze lever -3 pressed against the leftthe brake traction rod l. ln all other W a 'i m .1, r1 res n/e .1 ilt/l0is no machine at a e 11;. en,

type of cinistruction nor in the ineth'o operat in tional 'lorinhereinhe'liore described. wi

erence to l igurefi 7, 8 an I in .llie'ures l3 and i l; way of exampletwo co! 1 ietional 'lorn'is ol the rod by means of wl ch the hr arecausee to return ree y to tl position upon the release the hrul e.According); to the constructional tornis already described 15 1econnecti n ano disconnection oi the eccentric is always ell'ected by itstary morement, t eth provided it necessary upon the eccentric d'sc orthe inequalities occurring: in the course of worl: in the origihallsmooth dism serving to prevent the so lieiing turned hath upon therelease of i not lift ion eonioarismi with the co t .1. there are shownby st '1,

oli' ll to Wm, mimic jammed. The constructional 'i'orios' shown in ligures l3 and l allow ol the eccei trio heiugz; li'lzc-d (ill 11%) therole: 1 ol' the lu'ale:

withmit thi 1 l l l, hitter having); to turn istrucliiona 'l'oru: u

z 'lering' from the coustrurthuial loruisi hcrciir lie'lorrdcscrilieththe eccentric 2 is :ulapted to swing; around a lrolt "2 and the atio oi,t ansniission and the position of the point -s'- on the l'll'ltlIP lever---l is detcrniinei'l tor the period of the maximum exertion of power, i0., after a ndication of the hrali'c blocks s constant. The hralto lever23 is guided in its movement when uu'ivirro ahout the holt "lby the holt(3' working; in it slot (3 in plate 28 on which is nivotally mounted alever 29 eormecl'eiil at one end to the l id 1 perated rod '15 and atthe other end to a link 30 attachozfl to the hrake lover. Then'iovernent of the Qtt'lllll'lc is in this case elected through thei'alqe pres sure rod 5- by means ot a link -*5-- l ot =1 spring -ll---ati'azcliwl to he said 5 T. and the eccentric 'l2'. The eccentric itself is so formed that when the brake lilo-irks not applied to thewheels, it'is always l! a slight distance from the hearing point In thisconstruction the hralre lever 3 is lnral'i hm with the vehicle wheelsthrough the brake pro. "are rod At the same time the eccentric i.) movedinto contact with the point 8 oi? the brake lever and maintained incontact thrchgg h the link connection 5 and spring f)- conncctcd withthe bialie pressure rod 5. jailer such application of the brake blocksto the wheels. the brke pressure rod 5 coincs to a slandst and beginningfrom this period the eccentric turns no further. The hralte pressurelever 3 then bears with the bearing point supon the stationary eccentricand the braking etl'ort is ci'inn lc-ted. Upon releasing the brake theeccentric is moved from the lever as upon release of the brake rod lthebrake lever -I-;- will be caused first to rotate about the point ofconnection with the brake pressure rod and as a conserpience the bearingpoint -.s wi l at once he moved away from the eccentric -l2 which thusbecomes tree before its rotation talies place which will not be c lleced until the brake lever pivots about the point 6'.

Figure l-Li shows a modification wherein the operation of the eccentricl2- takes place liroin oil a point of the brake lever which as in allthe constructional. 'liOllllS according to Figures 1 to '12, theeccentric maintains a continual rotation up to the mollHili it becomesoperative. cure a positive lilting oil in this case of the eccentricupon the release ot the brake from the brahc lever. care must be takenthat the brake lever -l -an move back further t0- .vardoits initialposition even should a release of the eccentric not take placeat once. ll the brake lever can do this even when the eccentric does not turn,then both parts move a1 art from each other and consequently, contactbetween the two must be caused to cease. In the present case this isel'lected tor the reason that. between the brake lever 3 and theeccentric --12 there is provided a flexible connection 22- which notonly per-nuts the brake to move further to the right aite bringing' theeccentric into play in order to secure the necessary brake pressure. butalso renders it possible for the brake lever to move further towards its(left) initial position should a momentary jamming ol? the eccentrictake place when the brake is released. Such a flexible connection :an,as shown in Figure l-l, be obtained in a known and simple manner oy theaid of a spring.

In the construction shown in Figure 14, the brake lever 3 is firstoperated by the pressure applied through the rod 1 about the bolt 6arranged in a slot 6 in the plate 28 until the brakes are in contactwith the wheels of the vehicle. whereupon the lever next moves about thebolt 4, and finally the brake lever 3 operates about the point sjagainstthe ee-- centric 152 which is moved into position by the in order toso-.

I; positive release of any parts that may be jammed can also beell'ectcd for the reason that one ol the bolt holes assisting in theoperati'on oi the eccentric -12 to be placed in gear is formed as a longhole, whereby a Further 'ncing back of the lever 3-, and thus itslittin; oil from the eccentric -l2 is rendered certain in each case. 111the present case only one spring: (22) acting in one direction isnecessary.

Attention is called to the fact that while all the constructional formsdescribed possess the traction rods l and l5- for the application oi?the brake power and the pressure rods 5 for transmitting the powerfurther to the brake blocks, any other type oi power transn'iission canequally well. be used. 'lhe eccentric can be formed as a full or solideccentric ct about 300 degrees. The brake lever and allied mechanismconstituting the invention can be used with any oi the usual types ofbrake rods.

ll hat we claim and desire to secure by letters Patent oi the UnitedStates is:

1. Braking apparatus comprising a brake lever, and a tulcruin devicewhich is movable into and out of contact with the lever at. a pointintermediate ot its ends.

2. Braking apparatus coinprisiinj a bralco lcver. ;a 'lulcruin devicewhich is movable into and out oi contact with the lever a pointintermediate oi its ends, and a supporting: member tor the :lulcruindevice.

3. lrakine apparatus conr 'n'is iiugr a brake lover, a 'tillClllHldevice which movahle into and out oi emit-act with the lever at a pointintermediate of its ends. nicaus tor moving the tul2rum devicelengthwise of the lever, and a supporting member tor the devic l.Braking: apparatus comprising a spring controlled bralcelevcr. and roatable eccentric which is movable into and out ol contact with the leverat a point intermediate of its ends and operates a fulcrum therefor.

Braking apparatus COl'ilPi'lSillQ controlled brake lever. and rotatableeccentric which is movable into and out of contact with the lever at apoint interme diate oi its ends and ODiYlaEZQS as a fulcrum therefor,and is movable transv rsely of its axis oi rotation. v v

6. Braking apparatus comprising" a spring controlled brake lever. and arotatable eccentric which is movable into and out of contact with thelever at a point intermediate 01 its ends and operates as a fulcrumtherefor, and is longitudinally movable relatively to its axis ofrotation.

7. Braking apparatus comprising L. 3 controlled brake lever, and. armittable sprint;

till

centric which is movable into and out of contact with level, at a pointintermediate of: its ends and operates as a fulcrum there'l'or, and islimp'itiidinallv and transversely movable relatively to its axis o'lrotation.

8. Braking apparatus cou'iprising a pivotally mounted and spring:'controlled brake lever movable about and transversely of its pivotalcentre, and a rotatable eccentric which is movable into and out ofcontact with the brake lever and operates as a tulcrum therefor duringthe transverse movement o the lever.

9. Braking); ap iaratus comprising a pivotallv mounted and springcontrolled brake lover nn'ivable about and transversely ol' its pivotalcentre, and a ivitatable' eccentric which is movable into and out (Ifcontact with lhe levrr. and is movable transversely ot it; axis ofrotation, and arts as a 'lulcrum for the lever when the latter isi'noved transversely of its pivotal centre.

lo. Braking apparalus con'ipri, inn; a pivotallv moimted spring;controlled bra he lever, movable about and transversel o'l its pivotalcentre, and a rotatable eccentric which is ai'ljustable lengthwise oiits axis and is movable into and out o l contact with, the lever. andacts as a, 'li'ilcrum therefor when tlIG lGVGI. is moved transversely olthe pi otal centre.

ll, Braking apparatus con'iprising a spring controllml and pivotallymounted bralcimr lever movable about and transversely of its pivotalcentre and a rotatable eccentric which is adjustable renp'thwise of andtransversely movable relatively to its axis oi rotation.

'1 2. Braking;- apparatus conuirising a spring conti 'ollml bralce leverrotatably mounted on a transversely movable bolt, an ecrei'rtric movableinto contact with the lever at a point intermediate of its ends, andmeans connected with the lever for normally holdingthe eccei'itric outoi contact therewith.

12-1. l lralving apparatus comprising a spring' controlled bralre leverrotatably mounted on a transversely n'iovable bolt, an eccentric 1H0'able into and out o'l contact with the lover at a point intermediate ofits ends, and, means connected with the lever and the eccimlrie :tormgulatingthe operation oi the latter.

l-il. Braking apparatus comprising; a brake lever u'iounted on atransversel movable bolt, a brake piston rod cannected to one end ot thelever. a. brake pressure rod connecied to the other end of the lever, aspring connected to the lever and pulling it in an opposite direction tothat exerted by the brake piston rod, a rotatable eccentric, a

shaft on which the eccentric is mounted formed with a wedge shapedsurface, and a stirrup attached to the lever and provided with awedgeshaped stop block engageable with the wedge-shaped surface on theshatlt.

1.5. Braking apparatus comprising a, brakelevcr mounted on a transvcrselmovaljilc bolt, a brake piston rod connected to one end ot the lever, abrake pressure rod connected to the other end of the lever, a springconnected to the lever and pulling it in an opposite direction to thatexerted by the brake piston rod, a traiisversetv movable shaft formedwith a wedge-slmpml surface, bearings for supporting the transverselymovable shat't, a rotatable eccentric mounted. on the shaft, :1supportiup plate for the eccentric when it is moved transversely, and astirrup attached to the lever and provided with a wedgoshaped stop blockon b with the wedge-sljiaped surface on the shalt 16. lilrakingapparatus comprising" a brake lever mounted on a transversely movablebolt, a brake piston rod connected to one end of the lever, a brakepressure rod cimnected to the other end oi the lover, a spring connectedto the lever and pulling it in an op posite direction to that exerted bythe bra i=1? piston rod, a transversely movable shalt formed with asquare portion and a wedge shaped suritace, bearings For supporting theshaft, a rotatable eccentric mounted on the square portion oil theshalt, means For niov ing the eccentric lengthwise oi the shaft, and astirrup attached to the lever and pro vidod with a wedge-shapedstop-block engageable with the wedgo-shapod surface on the sha'lt.

17. Braking apparatus comprising a brake lever mounted on a transverselymovable bolt, a brake piston rod connected. to one end ol' the lever, abrake pressure rod con nected to the other end of the lover, a sl'irinp;connected to the lever and pulling it in an opposite direction to thatexerted by the brake piston. rod, a. rotatable and trans versel movableshalt "Formed with a square portion and a wedge-slniped suril'acixbearinns for supporting the irai'isversely movable shaft, an eccentricmounted on the square portion of the shall, a supporting plate for theeccentric when it is moved transversely, a thrust rod connected with theeccentric, vehicle frame, means connecting the frame with the thrustrod, and a stirrup attached to the transwcrselv movable bolt of thebrake and provided with a, Wedge-shaped stop-block engageable with thewedge-shaped surface on the shalt.

ING. ALFRED SGHEUER. HUGO SCHEUER.

Y "cable

